Kirisun PT260 Service Manual

PT260 Service Manual
14
Table 6.2 Rx part
Item Test conditions Test equipments
Test
point
Test
mode
Requirement Remarks
Audio
level
Test frequency: Intermediate
frequency point
Input from the antenna
connector;
RF OUT: -47dBm (501μV)
MOD: 1kHz
DEV: ±3.0kHz
Audio load: 8Ω
RF signal generator;
Oscilloscope;
Audio voltage meter;
Distortion test equipment;
Comprehensive test equipment
Speaker
jack
(Rotate the
VOLOME
Knob
clockwise to
the end) audio
power is
higher than
0.7W.
Table 6.3 Tx part
Item Test conditions Test equipments Test point Test mode Requirements Remarks
Tx
frequency
Frequency
counter;
Comprehensive
test equipment
Antenna
PC test mode Within ±200Hz
DCS
waveform
(balance)
Oscilloscope;
Comprehensive
test equipment
PC test mode
Waveform: near to flat
square waveform
Power
Power meter;
Comprehensive
test equipment;
Ammeter
PC test mode Adjust to 4W
Within
±0.2W
Max.
modulated
deviation
CH: Frequency point
of the Tx center
AG: 1kHz/220mV
Deviation meter;
Comprehensive
test equipment
Check Adjust to ±4.5kHz ±200Hz
CTCSS
DEV
CTCSS: 67Hz PC test mode Adjust to ± 0.75kHz ±250Hz
DCS DEV DCS: 023N PC test mode Adjust to ± 0.75kHz ±250Hz
Battery
warning
Battery terminal: 6.8V PC test mode
LED indicator flashes
after adjustment
Chapter 7 Specifications
7.1 General Specification
Model PT260
Frequency 400 – 470MHz
Type of Modulation 16K0F3E
Number of Channel 16 channels（15 + S）
Channel spacing 25 kHz/12.5KHz
Intermediate frequency None
Operating voltage 7.5V cathode grounded
Operating temperature -25℃~ +55℃
Antenna impedance 50
Microphone
impedance
1.8k
Battery (Standard
configuration)
Type: KB-260, Li-ion battery: DC
7.4V, 1100mAh
Size (W*D*H) 60 mm×210 mm×34mm
Weight (g) 223 (with battery and antenna)

Kirisun PT260 Specifications

General

Brand	Kirisun
Model	PT260
Category	Portable Radio
Language	English